The invention discloses a stator electro-magnetic vernier motor. The stator electro-magnetic vernier motor is characterized in that the stator electro-magnetic vernier motor comprises a stator, wherein the stator is in a circular ring shape, a plurality of grooves are formed in the circumferential direction the wall of the ring body, an armature winding or an excitation winding is embedded in each groove, and projection parts among the grooves form stator teeth; a rotor, wherein the rotor is in a circular ring shape, a plurality of magnetic regulating blocks made of a magnetic conductive material are uniformly arranged in the circumferential direction of the ring body at intervals, the stator and the rotor are coaxially assembled in a sleeving manner, and an interval exists between the stator and the rotor. According to the invention, the armature windings and the excitation windings are embedded in the stator grooves, and the rotor magnetic regulating blocks are utilized, so that low-speed large torque is not provided by a vernier effect of a permanent magnet, the magnetic loss problem of a permanent magnet vernier motor in a specific operation environment is solved, the efficiency is improved, and the cost is saved.